CN210495962U

CN210495962U - Gas mixing device

Info

Publication number: CN210495962U
Application number: CN201921287238.1U
Authority: CN
Inventors: 张亚夫
Original assignee: Henan Chengyi Equipment Technology Co Ltd
Current assignee: Henan Chengyi Equipment Technology Co Ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2020-05-12
Anticipated expiration: 2029-08-09

Abstract

The utility model discloses a gas mixing device, which comprises a limiting mechanism and a gas mixing mechanism, wherein the gas mixing mechanism is arranged in the limiting mechanism; the gas mixing mechanism comprises a gas mixing tank, a gas pipe, a float flowmeter, a pressure gauge, a valve and a gas joint, wherein the gas joint, the valve and the pressure gauge are connected to the float flowmeter through the gas pipe; the gas pipe of input multiple gas all is equipped with independent ooff valve and gas float flowmeter, improves the accuracy of input gas data, realizes the variety of output gas.

Description

Gas mixing device

Technical Field

The utility model relates to a gas circuit engineering technical field, concretely relates to gas mixing device.

Background

At present, different gas mixing devices are various, and most of the gas mixing devices directly introduce bottled gas or pipeline gas into a container in a simple mode to mix the gas. Therefore, only the mixed gas is obtained, but the specific gas ratio cannot be measured and calculated, and meanwhile, the mixed gas mode is easily influenced by the external environment, such as the ambient temperature, the pressure of input gas and the like.

In modern laboratory gas path engineering, in order to complete experiments, a laboratory gas path installation needs to use various analytical instruments, such as a gas chromatograph, an atomic absorption spectrometer, a gas-mass spectrometer, an ICP and the like, wherein the instruments need to use high-purity gas, a traditional method is to adopt an independent steel cylinder dispersed gas supply mode, each instrument and equipment in the gas supply mode is independently provided with a gas steel cylinder to respectively meet the use requirement of each instrument and equipment, but with the continuous increase of laboratory investment in recent years, the rapid increase of the instrument and equipment and the annual increase of gas consumption, the traditional gas supply mode is difficult to meet the increasing requirement of the instrument and equipment, meanwhile, the laboratory layout is disordered due to the dispersed gas supply mode, the frequent replacement of the steel cylinders also causes difficulty to the management and maintenance of the laboratory, in order to solve the problems of the two aspects, a set of system which has high safety and can realize the concentrated gas supply is required to complete the gas supply from a gas source to the instruments, this is the key point of laboratory gas circuit pipe system.

Meanwhile, with the continuous improvement and the development of new experimental methods, the more and more rigorous requirements of the conditions to be met by experiments are higher and higher, so that a single gas cannot meet the requirements of the experiments, and therefore, the appearance of a device capable of mixing gases in any proportion tends to be great, and the gas mixing device capable of mixing different gases in any proportion is developed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: various different gases are mixed in any proportion, the proportion of the input gases can be accurately controlled, a container for containing the mixed gases is added in the device to ensure the uniformity of the mixed gases, and meanwhile, the proportion of the input gases is also favorably controlled; each gas input is provided with a pressure gauge and a float flow controller to control the amount of the input gas, and the gas path of each input gas is provided with a separate valve to control, so that multiple combinations of gas mixing are realized.

The utility model adopts the technical scheme as follows:

a gas mixing device comprises a limiting mechanism and a gas mixing mechanism, wherein the gas mixing mechanism is arranged in the limiting mechanism;

the gas mixing mechanism comprises a gas mixing tank, a gas pipe, a float flowmeter, a pressure gauge, a valve and a gas joint, wherein the gas joint, the valve and the pressure gauge are connected to the float flowmeter through the gas pipe, the gas mixing tank is connected to the float flowmeter through another gas pipe, and the gas pipe connected to the gas mixing tank is communicated with the gas pipe connected to the valve through the float flowmeter.

As a further description of the above technical solution:

the limiting mechanism comprises an upper cover plate, a main body frame, trundles and a front panel, wherein the front panel is arranged on the front surface of the main body frame, the trundles are arranged on the bottom surface of the main body frame, and the upper cover plate is arranged on the top surface of the main body frame.

As a further description of the above technical solution:

the back of the float flowmeter is connected with two air pipes, the air pipes are respectively connected to the upper portion and the lower portion of the float flowmeter, one air pipe is used for communicating the float flowmeter with the air mixing tank, and the other air pipe is used for connecting the float flowmeter with the valve.

As a further description of the above technical solution:

the pressure gauge is connected to a passage between the float flowmeter and the valve through another air pipe.

As a further description of the above technical solution:

the air joint is connected with the valve through another air pipe.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model utilizes the gas mixing mechanism to firstly confirm the composition of the mixed gas, the gas mixing mechanism in the gas mixing device is arranged according to the required mixed type quantity, the input gas is entered by the gas joint, the next gas pressure is displayed by the pressure gauge on the front panel, the gas enters the gas mixing tank by the float flowmeter (the float flowmeter controls the gas flow), the gas is discharged from the gas joint after fully mixing in the gas mixing tank (the flow is the same when a plurality of gases are simultaneously admitted), the pressure gauge displays the pressure of the mixed gas when the mixed gas is discharged, different gases are mixed by the device, after the mixed gas is discharged, part of the mixed gas is remained in the gas mixing tank, therefore, the gas mixing tank is required to be emptied before the mixed gas is operated each time to ensure the accuracy of experimental data, a plurality of different gases are mixed in any proportion and the proportion of the input gas can be accurately controlled, the device is additionally provided with a container for containing mixed gas to ensure the uniformity of the mixed gas, and is also favorable for controlling the proportion of input gas.

2. The utility model utilizes the gas mixing mechanism, when a plurality of gases are required to be mixed, each valve corresponds to one passage, each passage corresponds to one gas, the switch of the valve can control the communication state of the gas mixing tank and the outside, when the gases are input, whether the residual gases in the gas mixing tank are emptied can be confirmed through the pressure gauge, after the state of the gas mixing tank is confirmed, the valve is opened, when the gases are input through the gas joint, the total amount of the input gases can be intuitively known through observing the pressure gauge and the float flowmeter, after the gases are mixed, the valve is closed to be fully mixed, after the mixing is finished, the valve is opened, when the mixed gases are discharged through the gas joint, the discharge amount can be intuitively controlled by the pressure gauge and the float flowmeter, therefore, each gas input is provided with a pressure gauge and a float flow controller to control the amount of the input gas, and the gas path of each input gas is provided with a separate valve to control, so that multiple combinations of gas mixing are realized.

3. The utility model discloses utilize stop gear, in the laboratory, because the restriction of individual environment leads to partial gas strorage device to be difficult to remove, at this moment, sets up truckle under the main body frame can make gas mixing device can remove, and convenient and various gas strorage device that are difficult to remove dock, just because gas mixing mechanism sets up in stop gear, through the mode that the truckle removed can guarantee that the gas mixing mechanism that splices can not produce the damage at the removal in-process, leads to the gas tightness to descend, has improved gas mixing device's adaptation environmental change's ability.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a gas mixing device according to the present invention;

fig. 2 is a detailed view of the air mixing mechanism.

The labels in the figure are: 1-limiting mechanism, 2-gas mixing mechanism, 1.1-upper cover plate, 1.2-main body frame, 1.3-truckle, 1.4-front panel, 2.1-gas mixing tank, 2.2-gas pipe, 2.3-float flowmeter, 2.4-pressure gauge, 2.5-valve, 2.6-gas joint.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The features and properties of the present invention are described in further detail below with reference to examples.

Example 1

As shown in the figure, the gas mixing device comprises a limiting mechanism 1 and a gas mixing mechanism 2, wherein the gas mixing mechanism 2 is arranged in the limiting mechanism 1; the gas mixing mechanism 2 comprises a gas mixing tank 2.1, a gas pipe 2.2, a float flowmeter 2.3, a pressure gauge 2.4, a valve 2.5 and a gas joint 2.6, wherein the gas joint 2.6, the valve 2.5 and the pressure gauge 2.4 are connected to the float flowmeter 2.3 through the gas pipe 2.2, the gas mixing tank 2.1 is connected to the float flowmeter 2.3 through another gas pipe 2.2, and the gas pipe 2.2 connected to the gas mixing tank 2.1 is communicated with the gas pipe 2.2 connected to the valve 2.5 through the float flowmeter 2.3; the limiting mechanism 1 comprises an upper cover plate 1.1, a main body frame 1.2, trundles 1.3 and a front panel 1.4, wherein the front panel 1.4 is arranged on the front surface of the main body frame 1.2, the trundles 1.3 are arranged on the bottom surface of the main body frame 1.2, and the upper cover plate 1.1 is arranged on the top surface of the main body frame 1.2; the back of the float flowmeter 2.3 is connected with two air pipes 2.2, the air pipes 2.2 are respectively connected with the upper part and the lower part of the float flowmeter 2.3, one air pipe 2.2 is used for communicating the float flowmeter 2.3 with the gas mixing tank 2.1, and the other air pipe 2.2 is used for connecting the float flowmeter 2.3 with the valve 2.5; the pressure gauge 2.4 is connected to a passage between the float flowmeter 2.3 and the valve 2.5 through another air pipe 2.2; the gas connection 2.6 is connected to the valve 2.5 via a further gas line 2.2.

The working principle of the embodiment is as follows:

at present, different gas mixing devices are various, and most of the gas mixing devices directly introduce bottled gas or pipeline gas into a container in a simple mode to mix the gas. Only the mixed gas is obtained, but the specific gas ratio cannot be measured and calculated, and meanwhile, the mixed gas mode is easily influenced by the external environment, such as the ambient temperature, the pressure of input gas and the like; in modern laboratory gas path engineering, in order to complete experiments, a laboratory gas path installation needs to use various analytical instruments, such as a gas chromatograph, an atomic absorption spectrometer, a gas-mass spectrometer, an ICP and the like, wherein the instruments need to use high-purity gas, a traditional method is to adopt an independent steel cylinder dispersed gas supply mode, each instrument and equipment in the gas supply mode is independently provided with a gas steel cylinder to respectively meet the use requirement of each instrument and equipment, but with the continuous increase of laboratory investment in recent years, the rapid increase of the instrument and equipment and the annual increase of gas consumption, the traditional gas supply mode is difficult to meet the increasing requirement of the instrument and equipment, meanwhile, the laboratory layout is disordered due to the dispersed gas supply mode, the frequent replacement of the steel cylinders also causes difficulty to the management and maintenance of the laboratory, in order to solve the problems of the two aspects, a set of system which has high safety and can realize the concentrated gas supply is required to complete the gas supply from a gas source to the instruments, the key point of the laboratory gas circuit pipeline system is that; meanwhile, with the continuous improvement and the development of new experimental methods, the more and more rigorous requirements of the conditions to be met by experiments are higher and higher, so that a single gas cannot meet the requirements of the experiments, and therefore, the appearance of a device capable of mixing gases in any proportion tends to be great, and the gas mixing device capable of mixing different gases in any proportion is developed. Firstly, the composition of mixed gas is confirmed, a gas mixing mechanism 2 in a gas mixing device is arranged according to the required mixed type quantity, the input gas enters from a gas connector 2.6, then the gas pressure is displayed by a pressure gauge 2.4 on a front panel 1.4, meanwhile, the gas enters a gas mixing tank 2.1 through a float flowmeter 2.3 (the float flowmeter 2.3 controls the gas flow), the gas is fully mixed in the gas mixing tank 2.1 and then is discharged from the gas connector 2.6 (the flow is the same when a plurality of gases are simultaneously fed), the pressure gauge 2.4 displays the pressure of the mixed gas when the mixed gas is discharged, different gases are mixed through the device, and after the mixed gas is discharged, part of the mixed gas is remained in the gas mixing tank 2.1, therefore, the gas mixing tank 2.1 needs to be emptied before the mixed gas is operated each time to ensure the accuracy of experimental data, the plurality of different gases are mixed in any proportion and the proportion of the input gases can be accurately controlled, the device is additionally provided with a container for containing mixed gas to ensure the uniformity of the mixed gas, and is also favorable for controlling the proportion of input gas.

Example 2

This embodiment has been optimized on the basis of embodiment 1, when needing to mix multiple gases, each valve 2.5 corresponds a passageway, and each passageway corresponds a gas, the switch of valve 2.5 can realize controlling the communicating state of gas mixing tank 2.1 and external world, when the input gas, can confirm through manometer 2.4 whether the residual gas in gas mixing tank 2.1 empties, after confirming the state of gas mixing tank 2.1, open valve 2.5, when carrying out gas input through gas connector 2.6, can audio-visually know the total amount of input gas through observing barometer and float flowmeter 2.3, after having mixed multiple gases, close valve 2.5, let its intensive mixing, after having mixed, open valve 2.5, when having discharged mixed gas through gas connector 2.6, can utilize the audio-visual control discharge amount of barometer and float flowmeter 2.3, therefore, each gas is input with a pressure gauge 2.4 and a float flow controller to control the amount of the input gas, and each gas input is controlled by a separate valve 2.5 on the gas path, so that multiple combinations of gas mixing are realized.

Example 3

The embodiment is optimized on the basis of the embodiment 1, in a laboratory, due to the limitation of individual environment, part of the gas storage device is difficult to move, at the moment, the caster 1.3 arranged below the main body frame 1.2 can enable the gas mixing device to move, the gas mixing device is convenient to be docked with various gas storage devices which are difficult to move, and due to the fact that the gas mixing mechanism 2 is arranged in the limiting mechanism 1, the spliced gas mixing mechanism 2 cannot be damaged in the moving process in a moving mode through the caster 1.3, airtightness is reduced, and the capability of the gas mixing device for adapting to the environment change is improved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A gas mixing device, characterized by: the gas mixing device comprises a limiting mechanism (1) and a gas mixing mechanism (2), wherein the gas mixing mechanism (2) is arranged in the limiting mechanism (1);

mix gas mechanism (2) including mixing gas jar (2.1), trachea (2.2), float flowmeter (2.3), manometer (2.4), valve (2.5), gas connection (2.6), valve (2.5) and manometer (2.4) are connected on float flowmeter (2.3) through trachea (2.2), mix gas jar (2.1) and connect on float flowmeter (2.3) through trachea (2.2), trachea (2.2) that mix gas jar (2.1) and valve (2.5) and be connected trachea (2.2) are through float flowmeter (2.3) intercommunication.

2. The gas mixing apparatus of claim 1, wherein: stop gear (1) includes upper cover plate (1.1), main body frame (1.2), truckle (1.3), front panel (1.4), the front at main body frame (1.2) is installed in front panel (1.4), the bottom surface at main body frame (1.2) is installed in truckle (1.3), the top surface at main body frame (1.2) is installed in upper cover plate (1.1).

3. The gas mixing apparatus of claim 1, wherein: the back of the float flowmeter (2.3) is connected with two air pipes (2.2), the air pipes (2.2) are respectively connected to the upper portion and the lower portion of the float flowmeter (2.3), one air pipe (2.2) is used for communicating the float flowmeter (2.3) with the air mixing tank (2.1), and the other air pipe (2.2) is used for connecting the float flowmeter (2.3) with the valve (2.5).

4. The gas mixing apparatus of claim 1, wherein: the pressure gauge (2.4) is connected to a passage between the float flowmeter (2.3) and the valve (2.5) through another air pipe (2.2).

5. The gas mixing apparatus of claim 1, wherein: the air joint (2.6) is connected with the valve (2.5) through another air pipe (2.2).